package com.atguigu.gulimall.cart.vo;

/**
 * @program: gulimall
 * @description:
 * @author: 江天赐
 * @create: 2022-08-15 10:07
 */

import java.math.BigDecimal;
import java.util.List;

/**
 * 整个购物车
 * 需要计算的属性，必须重写他的get方法，保证每次获取属性都会计算
 */
public class Cart {
    public List<CartItem> items;
    public Integer countNum;//商品数量
    public Integer countType;//商品类型数量
    public BigDecimal totalAmount;//商品总价
    public BigDecimal reduce = new BigDecimal("0.00");//减免价格

    public List<CartItem> getCartItems() {
        return items;
    }

    public void setCartItems(List<CartItem> cartItems) {
        this.items = cartItems;
    }

    public Integer getCountNum() {
        int count = 0;
        if (items != null && items.size() > 0) {
            for (CartItem item : items) {
                count += item.getCount();
            }
        }
        return count;
    }

    public Integer getCountType() {
        int count = 0;
        if (items != null && items.size() > 0) {
            for (CartItem item : items) {
                count += 1;
            }
        }
        return count;
    }

    public BigDecimal getTotalAmount() {
        BigDecimal amount = new BigDecimal("0");
        //计算购物项总价
        if (items != null && items.size() > 0) {
            for (CartItem item : items) {
                if (item.getCheck()) {
                    BigDecimal totalPrice = item.getTotalPrice();
                    amount = amount.add(totalPrice);
                }
            }
        }
        //减去优惠总价
        BigDecimal subtract = amount.subtract(getReduce());
        return subtract;
    }

    public BigDecimal getReduce() {
        return reduce;
    }

    public void setReduce(BigDecimal reduce) {
        this.reduce = reduce;
    }
}
